Teakettle and other boiling receptacle



F. C. BLACKBURN. TEAKETTLE AND OTHER BOILING RECEPTACLE. APPLICATION FILED OCT. 21, 1921.

Patented Nov. 141,

* stares at .tlatenterl Nov. 14,

Tiftid FRANK o. BLACKBURN, or MALTA BEND, r/rIssoURI.

TEAKETTLE AND OTHER BOILING REOEPTAGLE.

Application filed October 21, 1921. Serial No. 509,381;

. ToaZZ whom it may concern:

Be it known that I, FRANK C. BLACKBURN,

a citizen of the United States, residing at Malta Bend, in'thecounty of Saline andv State of Missouri, have invented certain new and useful Improvements in Teakettles and Other Boiling Receptacles, ofwhich thefollowing is a specification.

My invention relates to receptacles used for boiling purposes suchas tea kettles for example.

An object ofthe invention is to provide a lid for tea kettles and other boiling recepheating of the lid and burning of the hands.

tacles .which will permit the escape ofsteam 111 such a manner as to prevent excessive Another object of my invention isthe production of a kettle or similar article wherein steam is allowed to escape through a comparatively simple self-closing valve adapted to be opened by the pressure ofthe steam,

within the kettle and closed by the gravitation of the valve upon its seat when the which the steam is admitted throughthe pressure is relieved.

. Afurther object of the inventlonis to produce a lid for tea kettles or similar boilers,

said lid being formed with a chamber into valve, aforesaid, and subsequently discharged in a downwardly directlon and at a point in said lid remotefrom the handle of the kettle. 3

. lVith these and other objects in view the ,ing an embodiment of my invention as ap through the lidon theline 2-2 of Fig. l;

and a I Fig. 3 is a bottom plan ofthe lid.

My present invention has been designed to more effectually liberate the steam-which collects within the dome of the kettle, there- I by cooling the lid and making itmore sponding reference point.

easily removed without danger of burning the hands. The relative life of the lid is also increased by my present construction, the knobxfor example being unaffected by the comparatively low temperature resulting from the use of my improvedlid.

Referringtothe drawings in which correcharacters designate similar parts in the several views, the kettle 1 is formed with the spout 2, and handle 3 secured to projections 4 extending from the top of thekettle, as shown, I have illustrated .a tea kettle upon which my improved did is fitted, but it will be understood that said lid is equally useful upon other types of boilers, and I do not limit myself to the exact application and disclosure as herein presented. v

The lid 5 is preferably constructed to maintain its known appearance, and is provided with the usual knob 6 by which the 'lid is removed and replaced.

An opening is formed in the top of. the kettle and intothe flanged wall 7 surrounding said opening, the lid 5 is positioned as clearly shown in Fig. l. The size of the opening and lid I-prefer to keep standard, thereby permitting the ready usage and adoption of my improved lid upon various capacity kettles as now constructed.

A compartment or chamber 8 is formed in the lid by inserting a wall. 9 in the bottom of the lid and'securing the flange 10 there of to the inner face of the usual flange 11 [formed on the present lids. The flanges 10 and 11 may be joined together in any suitableway as will be, understood. The wall 9 may in some cases be removably asso ciated with said lid by means of a tight sliding fit, or other retaining devices.

The valve 12 is located centrally of the wall 9 and is designed to rest upon the seat 13 encircling the opening 14-. I have shown a ball valve of a weight proportional to the lifting force exerted by the steam at a comparatively low pressure, thereby insuring the lifting of the valve and permitting the discharge :of steam before reaching a higher pressure. The ball valve is confined within a cage-like closure 15 which prevents its abnormal removal from the seat. The cage 15 is formed of curved rods or wire which may be soldered or otherwise secured to the wall 9.

The chamber 8 formed within the dome of the lid is oi? a capacity sufficiently large to receive a maximum quantity of steam and permit its immediate expansion and discharge. An opening 16 provided in-a spoutlike discharge 17 communicates with the interior of the chamber 8.. The opening 16 is formed within the wall of the lid and at or substantially near the peripheral edge thereof. The discharge spout 1.7 is arranged to conform generally to the curvature of the dome-like lid, see Fig. 1, thereby maintaining an appearance not noticeably unlike ordinary tea kettle lids; This is an advantage over known constructions wherein a long and unsightly spout or tube "has established communication between the dome of thelid and the-pouring spout.

The discharge spout is formed with an upper wall 18 whichis curved downwardly,

be strucleup from the material which is cut out of-tlie'lid'to liormthe opening 16. This -1ip serves to direct the steam upwardly against "the curved wall 18 so that the ultimate discharge of all of the steam from the spout is in a downward direction. In providing the discharge opening for the steam at the edge of the lid and directing the passage of the steam downwardly, I h ave found that there is a cooling of the lid and the high temperaturesheretofore experienced are materially reduced, thereby preventing injury to the hands and increasingthe life of the lid.

In operation the vapor and steam "rise against the wall or partition 9. hen for example the boiling point has been reached and an accumulated pressure occurs beneath the wall 9, the valve 12 is lifted by=the steam from its: seat and allowed. to escape into the chamber 8. Fl'Oln *the said chamber the steam rapidly finds its way'out through the opening 16 in the wall'otthe'lid into "the discharge spout l7, and thence (tlownwardly and out through the relatively "wide opening 19 into the atmosphere. By the time the steam has passed through the foregoing stages and been dischargeddownwardly at- 'a remote point upon the edge ot-tl1elid, its heating and burning qualities are substanti ally expended.

When the pressure otthe steam has been reduced the valvereturns to its seat. Steam can now collect in-the kettlebeneath *the wall its pressure the top or dome portion of the kettle remains cool as it is protected by the wall or partition 9. As a result the handle of the kettle as well as the knob of the lid can be readily grasped without fear of burning.

Various changes in the construction of my hollow lid and arrangement of the several parts therein can be made as will properly fall within the scope of any invention which I now particularly define.

I claim: t s

1. A lid for tea kettles and other boiling receptacles provided with a wall spaced from the lid and forming a chamber, means for establishing communication between the aforesaid chamber and the interior of a tea kettle or other boiling receptacle when a predetermined pressure has been reached and means for establishing communication betweenthe. aforesaid chamber andthe atmosphere, said means being located at a point remote from said first named means.

2. A lid for tea kettles and other boiling receptacles provided with a wall spaced from the lid and forming a chamber, means including .avalve located *in said wall for establishing communication between the aforesaid chamber and the interior or a tea- -kettleorother boiling receptacle when a predetermined pressure has been reached, and anopening n said lid for estabhshrngcommunication between the said chamber and "the atmosphere.

3. A lid for 'teakettles and other boiling.

receptacles provided with a wall spaced from the "lid and forming a relatively large chamber, a valve adapted to establish communication between the aforesaid chamber andthe interior of a tea kettle orother boiling receptacle when a predetermined pressure is reached and a discharge means for permitting the escapeof steam from the aforesaid chamber:

4. A hollow lid for tea: kettles and other boiling receptacles" having a wall spaced from the dome of thelid, a chamberfformed between the dome and said wall, a self-seating valve in said wall, said valve being ar 1% nged "to establish communication between the aforesaid chamber and the interior of a tea kettle or other boiling receptacle when a predetermined pressure has been reached,

and means for discharging the contents of the aforesaid, chamber a't-ornear the peripheral edge of the lid.

A hollow lidffor tea kettles ma other boiling receptacles provided witha wall spaced fromthe ilid'lto form a chamber, a

self-seating valve for establishing communicatlon between the aforesaid chamber and the interior of a tea kettle or other boiling receptacle when a predetermined pressure has "been "reached, and a discharge spout looated near the peripheral edge of the lid and adapted to establish communication between the aforesaid chamber and atmosphere.

6. A tea kettle including a removable lid, 5 said lid being formed with ahollow chamber,

means for establishing communication between the said hollow chamber and the interior of the tea kettle when a predetermined pressure has been reached, and means including an opening near the edge of said lid for directing escaping steam from the chamber to the atmosphere at a remote point from the handle of the kettle.

In testimony whereof I afiix my signature.

FRANK o. BLACKBURN. 

